Botanical Name: Ageratum houstonianum ‘Aloha® White’ 

Common Name: Floss Flower 

Hardiness Zone: Grown as an Annual in Most Climates (USDA Zones 2–11) 

Size: 10–14" Tall × 12–16" Wide 

Growth Habit: Compact, Mounded, Well-Branched Habit 

Sunlight: Full Sun to Partial Sun 

Soil: Well-Drained, Moderately Fertile Soil 

Water Needs: Moderate; Even Moisture for Best Performance

Bloom Season: Late Spring Through Frost 

Fertilizer: Light, Regular Feeding During the Growing Season

Features: Soft Blue Blooms, Dense Flowering, Excellent Uniformity, Pollinator Friendly 

Uses: Ideal for Borders, Edging, Containers, Window Boxes, and Mass Plantings 

Patent: ✔ Patented 

Propagation: ❌ Propagation Prohibited Without License

See our complete Ageratum Plant Guide for full care details.

More About Ageratum Aloha® White

Ageratum Aloha® White is a refined, compact floss flower bred for tight growth, heavy flowering, and clean color throughout the season. Its bright white flower clusters sit neatly above dark green foliage, creating a crisp, polished look that works especially well in formal designs and small spaces. Unlike taller ageratum varieties, this selection maintains a controlled shape without stretching or flopping.

Blooming continuously from late spring through frost, Aloha® White provides consistent color and light pollinator activity without overwhelming neighboring plants. Its compact size makes it especially valuable for edging paths, lining garden beds, and anchoring container combinations where balance and scale matter.

Why We Like It (Our Trials)

In our trials, Aloha® White has shown excellent uniformity and reliability, holding its shape even through summer heat. Plants remain dense and floriferous with regular watering and light feeding, making them easy to maintain in both landscape and container settings.

We particularly appreciate how versatile this variety is. It performs beautifully as a clean border plant, mixes effortlessly with brighter annuals, and adds contrast to deeper foliage tones. For gardeners who want dependable white color without constant maintenance, Aloha® White consistently delivers.

Ageratum Aloha® White vs. Other Ageratums

Compared to taller varieties like ‘Blue Horizon’ or pollinator-focused selections such as ‘Monarch Magic’, Aloha® White stays much lower and more compact. While those varieties provide height and large flower heads for mid-border use, Aloha® White excels at precision planting, offering dense blooms and tidy form where structure and control are key.

For gardeners looking for a classic, compact ageratum with modern performance and season-long color, Aloha® White remains one of the best choices available. For an identical option with blue flowers, check out Ageratum Aloha® Blue.